• 한국ITS학회 논문지
• /
• 제16권2호
• /
• pp.23-35
• /
• 2017

교대통행은 2차로 도로에서 한 차로를 점용한 공사 시, 다른 한 차로를 교대로 사용하여 교통류를 처리하는 공사구간 교통관리기법이다. 신호수를 이용한 교대통행 교통관리 방안은 작업자의 안전문제와 방향별 통과 교통수요에 능동적으로 대처하는데 한계가 있다. 이런 잠재적 문제점을 해결하기 위한 하나의 방안으로 이동식 교대통행 운영시스템을 개발 적용하는 것이다. 본 연구에서는 이 시스템의 교통제어 기법을 개발하였다. 검지기에서 수집되는 방향별 교통량을 이용하여 공사구간 교대통행에 적용 가능한 교통제어 운영변수를 도출하고, 공사구간 내 차량의 존재 유무를 고려한 알고리즘을 설계하였다. 또한 교대통행 제어시스템의 운영효율성 극대화를 위하여 제어변수 최적화를 실시하였다. 최적화방안으로 유전알고리즘 기법을 적용하였으며, 적용 유무에 따른 지체시간을 산출하여 운영효율성을 평가하였다. 그 결과, 최적화를 시행했을 때 총 지체시간과 차량 한 대당 지체시간 모두 감소하는 것으로 나타났다. 본 연구에서 제시한 교대통행 동적제어 알고리즘을 통하여 교대통행 공사구간을 통과하는 차량에게 지체시간 감소효과를 기대할 수 있다.

• 한국인공지능학회지
• /
• 제9권1호
• /
• pp.1-7
• /
• 2021

In this paper, We focused the issue of creating a socially problematic nurse schedule. The nurse schedule should be prepared in consideration of three shifts, appropriate placement of experienced workers, the fairness of work assignment, and legal work standards. Because of the complex structure of the nurse schedule, which must reflect various requirements, in most hospitals, the nurse in charge writes it by hand with a lot of time and effort. This study attempted to automatically create an optimized nurse schedule based on legal labor standards and fairness. We developed an I/O Q-Learning algorithm-based model based on Python and Web Application for automatic nurse schedule. The model was trained to converge to 100 by creating an Fairness Indicator Score(FIS) that considers Labor Standards Act, Work equity, Work preference. Manual nurse schedules and this model are compared with FIS. This model showed a higher work equity index of 13.31 points, work preference index of 1.52 points, and FIS of 16.38 points. This study was able to automatically generate nurse schedule based on reinforcement Learning. In addition, as a result of creating the nurse schedule of E hospital using this model, it was possible to reduce the time required from 88 hours to 3 hours. If additional supplementation of FIS and reinforcement Learning techniques such as DQN, CNN, Monte Carlo Simulation and AlphaZero additionally utilize a more an optimized model can be developed.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2003년도 학술대회지
• /
• pp.422-425
• /
• 2003

건축공사의 고층화 추세에 따라 반복공정의 수가 증가하고, 마감공사에서의 관련 공종 수가 증가하여 작업 연속성에 대한 계획 및 공사관리가 중요하게 인식되고 있으며, 이러한 마감공사의 효율적 은용을 위해 각 작업을 일정한 리듬으로 반복되도록 함에 따라 공정의 개선을 이루고자 하는 기법이 택트공정관리이다. 그러나 택트공정관리는 세부공정 및 작업구역에 따른 상이한 시공속도와 이로 인한 선행공정의 작업지연 등 비효율적 요소 때문에 적용에 어려움이 있었다. 따라서 본 연구에서는 작업별 소요시간의 동기화(同期化)를 통한 개선효과를 파악하기 위해 기존의 공동주택 창호공사를 대상으로 작업방식의 세부작업단위 및 작업인원 수를 작업시간의 동기적(同期的)연결 및 최소 요구인원 수를 기준으로 조정한 후, 공기단축 효과를 분석하였다.

• 한국의료질향상학회지
• /
• 제1권2호
• /
• pp.60-72
• /
• 1994

Background: The number of outpatients visiting large university teaching hospitals has increased drastically with the introduction of a nationwide health care insurance in 1989 and the improvement of the socio-economic status of the population. This resulted in long waiting times for services, particularly prescribed drugs, which have been patients' chief complaints. Hospitals have tried to solve the problem with limited success because their approach lacked comprehensive research. The objective of this study is to investigate associations between waiting times and variables defining a total work system. Methods: Data for the outpatient pharmacy department in a tertiary care university teaching hospital located in Seoul was analyzed to achieve the study objective. Associations of pharmacy system variables -- work load, work force, pharmacist work schedule, machine problems, and inventory control -- with mean and 99th percentile of waiting times were examined by the hierarchical stepwise regression method. Day was a unit of the analyses. Results: The regression models explained 65.8% of variance in the mean waiting time and 61.34% in the 99th percentile of waiting times. The break-down of the printer for drug envelops, Automatic Tablet Counters (ATCs), and main computer system lasted longer than 30 minutes increased the mean for 7.7 minutes, 4.5 minutes, and 7.0 minutes, respectively, and the 99th percentile for 14.8 minutes, 9.0 minutes, and 15.7 minutes, respectively. Concerning the work force, study results showed that there were significant differences in the productivity of pharmacists with work experience more than three years, one to three years, and less than one year, and showed that peak time aid work by pharmacists at job assignments other than the outpatient pharmacy, part-time pharmacists, and the installation of ATCs were effective in reducing waiting times, Finally, study findings indicated that the operational policy of work assignment and rotation schedule, supply and inventory of drugs at work tables, and readiness for undisrupted work during the work hours could have a significant effect on waiting times. Conclusion: The study results indicated that efforts to reduce waiting times for prescribed drugs should be geared toward every components of the pharmacy work system ranging from work schedule of pharmacists and supply of dugs at work tables. These findings should provide hospital managers with right directions in battling the problem.

• 성인간호학회지
• /
• 제23권1호
• /
• pp.10-19
• /
• 2011

Purpose: The purpose of this study was to evaluate the impact of a protocol of cryotherapy and Tai Chi on women with Fibrolmyalgia Syndrome. Methods: The study design was a pretest and posttest quasi-experimental, nonrandom assignment. The subjects were 48 outpatients with a diagnosis of fibromyalgia based on the American College of Rheumatology Standards. The setting was a University Medical Center in S city. The protocol was self administered ten times a week, for a two week period resulting in twenty treatments. Results: A protocol of cryotherapy and Tai Chi self-help program showed significant improvement in the fibromyalgia impact as measured by reports of physical impairment, feeing good, number of missed work days, ability to perform work, reports of pain, fatigue, rest, stiffness, anxiety and depression as reported by the comparison group (p<.001). No significant differences between the two regarding in reports of the tender points (p=.062). Conclusion: The results suggested that a protocol of cryotherapy and Tai Chi self-help program may be a promising multidisciplinary strategy for fibromyalgia patients.

• 한국치위생학회지
• /
• 제20권5호
• /
• pp.685-695
• /
• 2020

Objectives: The purpose of this study was to investigate role·activity factors, ideal·value factors stress and stress amount relationship in clinical practice of dental hygiene students. Methods: The participate in this study were 231 dental hygiene department students. the survey was conducted from August 24 to September 30, 2018, using a structured questionnaire(1040460-A-2018-036). The collected data were compared and analyzed using a ANOVA and multiple regression. Results: The factors affecting the amount of stress were investigated. Role and activity factors stress in case of too much assignment, repeat simple and funtional work, ideal and value factors stress in case of utilized as a subsidiary work practice institution rather than clinical practice, lake of awareness that the training institution is a trainee. Conclusions: School institution and departments form organic relationships with industries. Uniform training guidance for each training institution does not help with diversity or creativity and problem-solving skills. It gives some autonomy to the training guidance of training institutions, also a clear standard for the contents of the training. we need a system that can provide and evaluate basic guidelines for what students can do in clinical practice.

• 공학교육연구
• /
• 제12권2호
• /
• pp.89-95
• /
• 2009

본 논문은 PLC분야의 인력수요, 채용과정, 훈련소의 교육내용을 조사하였다. 기술인력의 수요와 직업교육의 요구 수준을 파악하였따. 따라서 학생의 취업향상과 교육 훈련과정 개발을 위한 정보를 제공함에 목적이 있다. 인력수요 및 교육수요와 현장 실습생 수요에 대해 분석하였다. 표본 추출은 업종별, 규모별 할당표본 추출방법(quota Sampling)을 사용하였다. 조사방법은 전화 및 방문하여 조사하였으며 자료분석은 엑셀을 이용한 통계 분석을 하였다.

• 공학교육연구
• /
• 제11권3호
• /
• pp.90-95
• /
• 2008

본 조사의 목적은 중소도시의 빌딩 자동제어 분야의 인력 수요와 채용과정 및 훈련기관의 교육 과정을 조사하였다. 본 논문은 전기업체의 인력수요, 채용과정, 훈련소의 교육내용을 조사하였다. 기술인력의 수요와 직업교육의 요구 수준을 파악하였다. 따라서 학생의 취업 향상과 교육 훈련과정개발을 위한 정보를 제공함에 목적이 있다. 인력수요 및 교육수요와 현장 실습생 수요에 대해 분석하였다. 표본추출은 업종별, 규모별 할당표본 추출방법(quota Sampling)을 사용하였다. 조사방법은 전화 및 방문하여 조사하였으며, 자료분석은 엑셀을 이용한 통계 분석을 하였다.

• 한국응급구조학회지
• /
• 제14권1호
• /
• pp.31-46
• /
• 2010

This study was intended to analyze the clinical characteristic of the patient with hypoglycemia and the status of prehospital treatments by 119 emergency medical technicians well as the cause of inappropriate emergency treatment by 119 emergency medical technicians in a bid to seek the measures for improvement, thereby enhancing the emergency medical services before medical treatment at hospital. Examination of the daily work log on 430 patients suffering with hypoglycemia who were sent to the university hospital in Gyunggi-Province by 119 emergency medical technicians, beginning on Jan 1, 2004 till Dec 31. 2008 was carried out and the survey of 206 119 emergency medical technicians working at the region of Gyunggid-Province was conducted from Sep 19 through Oct 6, 2009. Evaluation of the frequency and percentage and ANOVA analysis using SPSS WIN 14.0 program was carried out. In view of the examination of daily emergency work log and questionnaire, prehospital treatment for the patients with hypoglycemia needs to be further improved in general, and to provide the emergency treatment in accurate and timely manner, improvement of the system such as assignment of licensed rescue members and development of protocol that will replace the medical consultant system, mandatory emergency treatment, constant and efficient training and maintenance of emergency rescue records shall be implemented, and furthermore, social recognition to 119 emergency medical technicians shall be improved to encourage them to perform more positive way and manner.

• 한국직업건강간호학회지
• /
• 제3권호
• /
• pp.21-30
• /
• 1993

For the purpose of disclosing the magnitude of low back pain problems of hospital nursing personnel and its possible causes, a questionaire survey was carried out on 418 nurses and nurse aides if a university hospital in Seoul. The results were as follows : 1. Of 418 nurse and nurse aides, 268 persons(64.1%) have experienced 1,145 spells of low back pain during 6-month period. 2. The pain and/or discomfort was mostly limited to the back, although 19% of the episodes accompanied radiating pain to the low extremities. 3. Of those with low back pain, 23 persons(8.6%) were medically diagnosed and 17 persons(6.3%)-underwent medical treatment. Those who sick leave amounted to 8 persons(3.0%). 4. The occurrence of low back pain showed significant association with assignment of duties(wards) and work shifts, while the association was not significant in terms of ranks, careers and overtimes. 5. The occurrence of low back pain was closely associated with lifting and carrying of loads, standing and twisting postures as well as the amount of work. 6. Among the nonoccupational factors, drinking showed statistically significant association with the occurrence of low back pain.